Fountain-pen.



No. 784,588. PATENTED MAR. 14, 1905.

' F. W. BBNDER.

FOUNTAIN PEN.

APPLICATION FILED JULY 1, 1904.

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IIIIIIIIIIIIIIIIII Maj No. 784,5?,8i

Patented March 14,y 1905.

PATENT OFFICE.,

FREDERICK VILLIAM BENDER, OF HOBOKEN, NEW JERSEY.

FOU NTAlN-PEN.

SPECIFIC ATION forming part of Letters Patent No. 784,538, dated March14., 1905.

Application filed July l, 1904. Serial No. 214,998.

Be it known that I, FREDERICK VIIILIAM BENDER, a citizen of' the UnitedStates, residingat Hoboken, in the county of' Hudson and State ofl NewJersey, have invented new and useful Improvements in Fountain-Pens, ofwhich the following is a specification.

The objects of my invention are, first, to provide a locking device toprevent the ink from escaping; second, to provide a means to break upthe air-bubbles; third, to feed the ink rapidly to the pen-point.

My invention relates to a valve which screws into the reservoir and maybe moved forward and back in the feed-pipe by turning the reservoir.Near the center of' the feed-pipe isa shoulder which narrows the passageinto a small circular passage. rlhe conical end of' the valve fills themouth of' this small passage when it is moved forward, and thus preventsthe ink from escaping'.

My invention also relates to a ribbon-like shaft which is longer thanthe reservoir and projects from the interior of the reservoir throughone of' several depressions in the valve-bar into the feed-pipe, so thatwhen the reservoir is turned the shaft turns round in tle feed-pipe, andthus prevents the air-bubb es.

My invention also relates to a slotted tube which, together with thepen-point, fits into thc feed-pipe. The feed-tube is a circular tubewith an ear-like projection from one side which fits under thepen-point. The projection is convex at the extremity on both sides. Theslot cuts through the tube and extends almost to the end of' theprojection. Different sized pens may be used with this feed-tube. Thenthe maximum size is used, the sides of' the slot away from theprojection are pressed together. This slotted tube produces an easyrapid flow of ink to the pen-point.

l attain these objects by the mechanism illustrated in the accompanying'drawings, in whichw Figure 1 is a side View of' the bar-valve. Fig. .lAis an end View of the bar-valve. Fig. 2 is a view ofthe reservoir. Fig.3 is a crosssection ofl the feed-pipe. Fig. 4 is a cross-sectant raisedportions which are threaded at c and c c". Between the said raisedportions are three depressions or fissures d Z d".

The reservoir B is open at one end and threaded in the interior at f1and about the exterior at f. Between the threads a and the open end isthe smooth space p.'

The outer tube D is threaded in the interior at g.

The feed-pipe C has a circular channel .fr and r:, with the shoulder Zin the middle, through which is a small circular passage y. About theexterior near the middle is the collar a. The raised threads fm occupyone-half of the exterior space between the collar and the end of' thefeed-pipe. Between the raised threads fm, and the end of' the feed-pipeis the smooth space 0.

The slotted feed-tube E is a cylindrical tube with a circular passagethrough its length. From one end extends the ear-like projection L'. Aslot j cuts through the tube to the circular passage and extends onalmost to the end of' the fiat ear-like projection I.

The cap F lits on the end of' the reservoir or on the feed-pipe.

The shaft G is a slender ribbon-like shaft longer than the reservoir andthin enough to go through one of' the depressions d d d".

lhe valve-bar A is screwed on the threads c c c" into the threads e ofthe reservoir B. The shaft Gr extends through the depression l of bar Ainto the reservoir.

The slotted feed-tube E is wedged into the passage :r of the feed-pipewith the pen-point fr, so that the entire slot L7' opens on the pen andthe projecting ear of' the feed-tube la is near the outer point of' thepen. The smooth end of' the feed-pipe C fits into the open end of thereservoir B. The outer tube D screws with its interior threads g uponthe threadsf of the reservoir B and the threads m of the feed-pipe C.

Zhen the closed end of the reservoir is turned or screwed, the reservoirmoves in through the outer tube D until the conical end Z) of the valveA enters and closes the passage 1/ in the feed-pipe. When the reservoirturns, the shaft Gr, which protrudes from the reservoir into thefeed-pipe passage e, moves about and breaks the air-bubbles.

When the reservoir is unscrewed, the valve moves back from the collar Z,and the ink iows through the passage y into the feed-bar land thence tothe pen-point.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. In a fountain-pen the combination of the bar A having the bar portiona which ends in the coneZ and at the other end the three equidistantraised and threaded portions c c c" and between the said raised portionsthe depressions cZ Z' CZ, the reservoir B having' an opening at one endand having the threaded portion f about the outside and having thethreaded portion e in the interior into which tits the threaded portionsc c c" of the valve A, the

outer tube D open at both ends having the threaded portion g inside intowhich tit the threads f of the reservoir and the threads moi' thefeed-pipe, the feed-pipe C having the passage a' ,e the shoulder Z inthe interior of the saidpassage and the small circular passage g/through the shoulder Z and having the collar 'a about the outside andthe threaded portion m about the outside which threads fit in threads gof the outer tube, the thin ribbon-like shaft G which is longer than thereservoir and protrudes from the interior of the reservoir, the slottedfeed-tube E having the slotted tu be part ZL which tits into the passagea' of the feed-pipe and having the earlike projection Z; and having thecircular interior passage e' and having the slot g which cuts throughthe tube and almost to the end of the projection Zt substantially asdescribed.

2. Inafountain-p'en the'locking device con# sisting of a valve-bar Ahaving the conical end Z) and the raised threaded portions c c c whichscrew into the reservoir B, the reservoir B threaded interiorly at e andexteriorly at f which screws into the outer tube D, the outer tube Dhaving the interior threads g,

the feed-pipe C having the interior passage e and the shoulder Z and thepassage y through the shoulder and the exterior collar n and theexterior threads m which screw into the outer tube D, so that when theclosed end of the reservoir is turned the conical end of the valve amoves forward and closes the passage y of the feed-pipe C thus lockingthe device and preventing the egress of ink substantially as described.

3. In a fountain-pen the device to aid the easy ilow ot' ink consistingof a valve-bar- A having raised threaded portions c c c and depressed.

portions CZ CZ d between the raised portions, the reservoir B having theinterior threads e into which screw the raised threaded portions c c c"of the valve and having the exterior threads f, the outer tube D havingthe interior threads g, the feed-pipe C having the passage the exteriorcollar a and the exterior threads m which screw into the outer tube D,the ribbon-like shaft G longer than the reservoir which passes out ofthe reservoir through one of the openings made by the depressions Z CZ'tZ of the valve-bar into the passage .e of the feed-pipe, so that whenthe reservoir is turned at the closed end the shaft G' moves about inthe feed-pipe and breaks the air-bubbles thus permitting an even flow ofink substantially as described.

4. In ai'ountain-pen the slotted feed-tube E having an ear-likeprojection /tand a slot cleaving the tube and extending almost to theend of the projection Zt and having the interior passage 'L'substantially as described.

5. In a fountain-pen the combination of the feed-'pipe C having thecollar u andthe threaded portion m and the smooth space 0, with thereservoir B having the inner threads @and the inner smooth space p andthe outer threads f, so that the smooth space 0 of the feed-pipe titstightly into the smooth space p of the reservoir B and so prevents anoverflow of ink into the outer tube D substantially as described.

ln testimony whereof I have signed myname to this specification in thepresence of two subscribing witnesses.

FREDERICK WILLIAM BENDER.

Witnesses: v

ARTHUR J. WESTERMAYE, CHARLES` WV. McCANDLEss.

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